Flora of the Hawaiian Islands
Dicotyledon Literature for Sida fallax
Wagner et al., 1990, 1999.
   Malvaceae -- The Cacao, Linden, Mallow Family Bibliography
      Sida fallax

Common name(s): `ilima
General Information
DistributionWidespread on Pacific islands to China.In the Hawaiian Islands, indigenous to Midway, Nihoa, Ni`ihau, Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Kaho`olawe, Hawai`i.

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Prostrate or diffuse to erect shrubs 0.2-1.5(-3) m tall, glabrate to densely velvety tomentose, the hairs usually stellate, sometimes also simple and glandular.
Leaf blades usually discolorous, lanceolate-ovate to oblong, elliptic, or suborbicular, 1-12 cm long, upper surface bright green and glabrous or sparsely to densely pubescent, lower surface densely pubescent, margins finely to coarsely serrate or crenate, apex acute to acuminate or obtuse, base obtuse to subcordate, petioles 0.5-5.5 cm long, stipules filiform to linear, 3-10 mm long.
Flowers axillary, solitary or 2-7 per node, borne in the leaves or crowded at the ends of the branches, pedicellate or rarely subsessile, pedicels slender, distinct or sometimes connate in a common peduncle, articulate, 0.5-2 cm long in flower, up to 5(-7) cm long in fruit; calyx green or dark purple, campanulate, (5.5-)6-9 mm long in flower, somewhat larger in fruit, the tube strongly ribbed, the lobes triangular to ovate, acute to acuminate; corolla yellow to orangish yellow, sometimes dark maroon at base, rotate, the petals broadly obovate, 8-15 mm long, asymmetrically 2-lobed apically, ciliate along the claw; staminal column included, yellow, 2.5-4 mm long, glabrous or puberulent apically.
Mericarps (5)6-9, pale brown to black, basically trigonous, 2.8-4 mm long, lower dorsal and lateral walls strongly rugose-reticulate, apex puberulent, muticous, short-beaked or with awns 0.3-1(-1.8) mm long.
Seeds brown or black, trigonous-obovoid, 1.7-2.2 mm long, puberulent around the raphe.
2n = 28*